What’s Vulnerable › Vulnerabilities

CVE-2026-115456: Gcc: out-of-bounds read in std::from_chars

• Severity: low (CVSS 3.7 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.2% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2026-10-30 · updated 2026-10-30
• Weakness: CWE-125

Description

A flaw was found in gcc. An attacker could cause a Denial of Service (DoS) by passing a string that is not null-terminated to the std::from_chars() function in the libstdc++ library. This issue triggers an out-of-bounds read beyond the allocated buffer, potentially leading to invalid data parsing or an application crash.

Affected products

• Red Hat Enterprise Linux 10: all versions
• Red Hat Enterprise Linux 9: all versions
• Red Hat Hardened Images: all versions

References

• https://access.redhat.com/security/cve/CVE-2026-115456
• https://bugzilla.redhat.com/show_bug.cgi?id=2563044

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